Biological Membranes

The fluid mosaic model of the membrane proposed that membranes:

Which of the following is NOT a function of membrane proteins?

Which of the following statements about diffusion is true?

Which molecule most easily diffuses across a biological membrane’s lipid bilayer, without help of a protein?

According to the map above, what kind of large molecule transport is also called the process of cell “eating”?

Passive membrane transport processes include___________.

What is the difference between active and passive transport across a membrane?

A transport protein that simultaneously transports two different molecules in different directions is called:

Which option below best describes a transporter that requires ATP to move molecules A and B out of the cell?

Osmosis is best defined as the movement of:

Which direction would you expect water to move across the cell membrane?

Plants become turgid when placed in this type of solution:

What would you expect to happen to the cell under the following conditions?

Which of the following processes includes all of the others?

The difference between simple and facilitated diffusion is that facilitated diffusion:

Which of the following does not accurately describe a channel or a carrier?

Which type(s) of molecules cannot enter/exit the cell via simple diffusion and require facilitated diffusion?

The force driving simple diffusion is ________, while the energy source for active transport is ________.

A sodium-potassium pump ________.

Which of the following defines the type of transport by the sodium-potassium pump?

How are primary and secondary active transport related?

The difference between pinocytosis and receptor-mediated endocytosis is that ________.

Which of the following is NOT a true statement regarding exocytosis?

Which means of particle transport is shown in the figure below?